US20130220275A1 - Fuel accumulator block for testing high-pressure components of fuel injection systems - Google Patents
Fuel accumulator block for testing high-pressure components of fuel injection systems Download PDFInfo
- Publication number
- US20130220275A1 US20130220275A1 US13/821,909 US201113821909A US2013220275A1 US 20130220275 A1 US20130220275 A1 US 20130220275A1 US 201113821909 A US201113821909 A US 201113821909A US 2013220275 A1 US2013220275 A1 US 2013220275A1
- Authority
- US
- United States
- Prior art keywords
- cooling
- line
- fuel
- recited
- run
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 45
- 238000012360 testing method Methods 0.000 title claims abstract description 45
- 238000002347 injection Methods 0.000 title abstract description 5
- 239000007924 injection Substances 0.000 title abstract description 5
- 238000001816 cooling Methods 0.000 claims abstract description 79
- 239000002826 coolant Substances 0.000 claims abstract description 9
- 230000000630 rising effect Effects 0.000 claims description 11
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 241000270295 Serpentes Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000008642 heat stress Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M53/00—Fuel-injection apparatus characterised by having heating, cooling or thermally-insulating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
- F02M65/001—Measuring fuel delivery of a fuel injector
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
- F02M65/002—Measuring fuel delivery of multi-cylinder injection pumps
Abstract
Description
- The present invention relates to a fuel accumulator block according to the preamble of Claim 1.
- In auto repair shops, for testing high-pressure components of fuel injection systems of motor vehicles, such as high-pressure pumps or fuel injectors, testing units are used which include a fuel accumulator block as a so-called test rail. The higher the test pressures rise in the testing of the high-pressure components, the higher are the temperatures that occur in the test rail. These temperatures are created both by the compression of the test medium (testing oil) of up to 250 MPa and by the friction taking place at the pressure control valves acting as throttles, as well as by heating by the electromagnetic switching valve of the pressure control valve. To cool pressure control valves in common rail installed in motor vehicles, the pressure control valve has fuel flowing around it, which thereby already generates cooling. However, the main quantity of the fuel flows through the fuel injectors. In the case of increased or reduced demand for fuel, its supply is controlled in the supply area of the fuel. Therefore, its flow through the pressure control valve is limited, so that in this instance explicit cooling becomes necessary.
- The cooling of a fuel accumulator block (common rail) of a fuel-injection system used in a motor vehicle is described in German Patent Application No. DE 199 45 436 C1. In that document, the fuel accumulator block, besides the main bore acting as pressure accumulator, has lines running parallel to it for cooling the fuel accumulator block, in which a cooling medium is circulating. In addition, it is provided that one should also guide the recirculating leakage from the fuel injector through a leakage line guided through the high-pressure accumulator block, so that the leakage also cools the fuel accumulator block.
- Especially in the testing of high-pressure pumps, the entire conveyed quantity flows through the pressure control valves, whereby a considerably higher heat stress arises in the test rail than in a fuel accumulator block (common rail) installed in a motor vehicle. Thus, for example, at pressures of 200 MPa and through-flows of more than 70 liter per hour, the admissible operating temperatures for the pressure control valves are exceeded, whereby in particular, the O-ring seals of the pressure control valves are endangered. Other components, such as pressure sensors or pressure limiting valves, may fail prematurely because of the higher temperatures. Besides, at increasing temperature, the stability of the fuel accumulator block (test rail) becomes decreased, particularly with respect to a high pressure load.
- An example fuel accumulator block according to the present invention may have the advantage that, because of the cooling of the accumulator body, the temperature-critical places, particularly of the pressure control valves installed in the accumulator body, are exposed to a lower temperature stress, so that their service life is increased. Besides that, by cooling the accumulator body, it is possible further to raise the test pressure for the components without exceeding the admissible temperatures, without bringing on the destruction of the pressure control valves, for example. This means at the same time that the service life of the pressure control valves is increased even at test pressures above 200 MPa. In addition, the pressure load of the fuel accumulator block is increased by the cooling of the accumulator body. Because of the low temperature level of the fuel accumulator block, the operator of the testing device is also protected from possible injury. Furthermore, because of the low temperatures of the test oil, the measuring system is protected.
- Effective cooling of the accumulator body is achieved when the section of the cooling line run at least partially surrounds the accommodation for the pressure control valve, such as in a meander shape or a ring shape, e.g., an annular channel or closed channels running in parallel. In the case of a plurality of accommodations for a plurality of pressure control valves it is expedient if the section of the cooling line run runs between two adjacent receptacles.
- A particularly efficient cooling of the accumulator body may be achieved if the cooling line run runs in at least two cooling planes that lie one over the other, within the accumulator body, in the first cooling plane a first line section of the cooling line run being situated and in the second cooling plane a second line section of the cooling line run being situated, and the two line sections being connected via at least one rising line.
- In this context, besides the two cooling planes, the cooling line run includes a distribution plane in which a first distribution line is situated having an intake opening for accommodating an intake connector for the cooling medium. From the first distribution line, a first rising line leads into the first cooling plane, in which the first line section includes two additional distribution lines. From the first line section, a second rising line leads into the second cooling plane, in which the second line section includes two additional distribution lines. Finally, from one of the additional distribution lines, an output line branches off, which leads to an outlet opening for an outlet connector for connecting the cooling line. The cooling line run may also run within the accumulator body via more than two cooling planes.
- Between the distribution lines situated in a cooling plane, cross lines expediently run in each case between the receptacles for the pressure control valves, the distribution lines situated in a cooling plane and the cross lines situated in a cooling plane in each case run parallel to one another.
- An exemplary embodiment of the present invention is represented in the figures and explained in greater detail below.
-
FIG. 1 shows a lateral view of a fuel accumulator block having attachment components. -
FIG. 2 shows a top view onto an accumulator body of the fuel accumulator block without attachment components. -
FIG. 3 shows a section through the accumulator body according to line inFIG. 2 . -
FIG. 4 shows a section through the accumulator body according to line IV-IV inFIG. 2 . -
FIG. 5 shows a section through the accumulator body according to line V-V inFIGS. 3 and 4 . -
FIG. 6 shows a section through the accumulator body according to line VI-VI inFIGS. 3 and 4 , and -
FIG. 7 shows a 3D view of the accumulator body having the courses of the bores drawn in. - The fuel accumulator block shown in
FIG. 1 includes anaccumulator body 10 along with attachment components situated on it, such as aninlet connector 11 and anoutlet connector 12 for connecting atest line 51, respectively shown schematically by arrows, for a test medium, such as test oil, anadditional inlet connector 16 and anadditional outlet connector 17 for connecting acooling line 61 for circulating cooling medium, respectively shown schematically by arrows.Accumulator body 10 is used as a test rail, for example, for testing high-pressure components of fuel injection systems of motor vehicles, e.g. of high-pressure pumps or fuel injectors. - In
accumulator body 10, furthermore, for instance, threepressure control valves 13 for controlling the test pressure as well as apressure sensor 14 for recording the test pressure are used as attachment components. Onaccumulator body 10, furthermore, atest oil collector 15 is flange-mounted as an attachment component, into which post-connected outlets open out for discharging a controlled termination quantity ofpressure control valves 13. - As a high-pressure component that is to be tested, the high-pressure pump, for example, is connected to
inlet connector 11 viatest line 51. In this case of application,outlet connector 12 is closed. The test oil, in this case, is guided throughpressure control valve 13 intotest oil collector 15, and from there to a measuring device (not shown) for volume flow measurement. In the case of a fuel injector that is to be tested,test line 51 goes fromoutlet connector 12 to a distributor rail (not shown) to which the fuel injector, that is to be tested, is connected. - The
accumulator body 10 according toFIG. 2 has aninlet connector receptacle 21 for insertinginlet connector 11, anoutlet connector receptacle 22 for insertingoutlet connector 12 and for inserting pressure control valves 13 a pressurecontrol valves receptacle 23, respectively.Receptacles FIG. 3 , includes abus line 25 andbranch lines 24,branch lines 24 connectingreceptacles bus line 25.Bus line 25 is provided at one end with anopening 26 for insertingpressure sensor 14 and at the opposite end with anadditional opening 27 for inserting ablanking plug 28.Bus line 25 is used as a high-pressure accumulator for the test oil that is to be stored inaccumulator body 10. - According to
FIGS. 4 and 5 ,accumulator body 10 also has, at a lateral end face, an inlet opening 29 foradditional inlet connector 16 forcooling line 61, as well as, on the upper side, according toFIG. 2 , an outlet opening 31 foradditional outlet connector 17 forcooling line 61. - In
FIGS. 4 , 5 and 6 one may see a cooling line run 30 for the cooling medium withinaccumulator body 10.Cooling line run 30 includes a first line section 30.1 in afirst cooling plane 36, a second line section 30.2 in asecond cooling plane 42 and a non-designated third line section in adistribution plane 19. Cooling line run 30 leads frominlet opening 29 for theadditional inlet connector 16 via aslantwise line 32 to afirst distribution line 33 indistribution plane 19. At the end offirst distribution line 33, a first risingline 34 branches off which leads to a first line section 30.1 in thefirst cooling plane 36,first cooling plane 36 being represented byFIG. 5 . Infirst cooling plane 36 there are located, running parallel to each other, asecond distribution line 35 and athird distribution line 38, as well as between pressurecontrol valve receptacles 23, and also running parallel to one another, threecross lines 37, for example. First risingline 34 leads, in this case, to one of the threecross lines 37, so that via first risingline 34 the connection is produced betweenfirst distribution line 33 and first line section 30.1 infirst cooling plane 36. - At the end of
third distribution line 38, infirst cooling plane 36 there is a connectingline 39, running parallel tocross lines 37, from which a second risingline 40 branches off, which leads to second line section 30.2, which is located insecond cooling plane 42 lying above it,second cooling plane 42 being shown byFIG. 6 . Second risingline 40, in this context, leads from first connectingline 39 infirst cooling plane 36 to a second connectingline 41 insecond cooling plane 42. The second rising line is executed as a blind bore which is closed at the crossing withfirst distribution line 33 by using screw plugs 71, 72. - Second connecting
line 41, lying insecond cooling plane 42, leads to afourth distribution line 43, from which, for instance, threeadditional cross lines 44, that run parallel to one another, branch off, which lead to an additional connectingline 45 lying opposite, in parallel to one offourth distribution line 44. Second connectingline 41 runs parallel to the additional cross lines 44. At the end offourth distribution line 43, there branches off at right angles anoutlet line 46, which leads to outlet opening 31 foradditional outlet connector 17, for connecting coolingline 61. - In order for cooling
line run 30 in line sections 30.1, 30.2 to lead aroundreceptacles 23 in meander or snake shape, screw plugs 75, 78 are inserted in line section 30.1 intodistribution lines distribution lines - For greater clarity, cooling
line run 30 withinaccumulator body 10 is shown once more in a 3D view inFIG. 7 . It may be seen inFIG. 7 that coolingline run 30 withinaccumulator body 10 is embodied in such a way that the cooling medium is guided throughaccumulator body 10 in, for instance, the twoparallel cooling planes receptacles 23 forpressure control valves 13. Coolingline run 30 is executed by making bores, which, for the development of the required circulation indistribution plane 19 and the two coolingplanes - Besides the test oil mentioned, water, special glycol mixtures or even air are conceivable as a test medium. It is also possible that, besides cooling
line run 30, one might also executetest line run 20 in the vicinity ofreceptacles 23 forpressure control valves 13, whereby the test medium realizes an additional cooling ofpressure control valves 13. With respect to the cooling line run, besides the meander-shaped runs, other runs are also possible in a different number of cooling planes, such as circular runs, for instance annular channels or runs having a plurality of parallel bores. -
Accumulator body 10 may also be additionally designed inside to have plates and/or cooling ribs, in order to achieve even better efficiency. As a further alternative, cooling using outer ribs and fans may also be used in addition. A temperature reduction atpressure control valve 13 is also possible by increasing the number ofpressure control valves 13 used inaccumulator body 10.
Claims (13)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010040541 | 2010-09-10 | ||
DE102010040541A DE102010040541A1 (en) | 2010-09-10 | 2010-09-10 | Fuel storage block for testing high pressure components of fuel injectors |
DE102010040541.8 | 2010-09-10 | ||
PCT/EP2011/062433 WO2012031813A1 (en) | 2010-09-10 | 2011-07-20 | Fuel accumulator block for testing high-pressure components of fuel injection systems |
Publications (2)
Publication Number | Publication Date |
---|---|
US20130220275A1 true US20130220275A1 (en) | 2013-08-29 |
US9388781B2 US9388781B2 (en) | 2016-07-12 |
Family
ID=44510923
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/821,909 Active 2032-07-22 US9388781B2 (en) | 2010-09-10 | 2011-07-20 | Fuel accumulator block for testing high-pressure components of fuel injection systems |
Country Status (6)
Country | Link |
---|---|
US (1) | US9388781B2 (en) |
EP (1) | EP2614246B1 (en) |
CN (1) | CN103080529B (en) |
BR (1) | BR112013005556B1 (en) |
DE (1) | DE102010040541A1 (en) |
WO (1) | WO2012031813A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130031775A1 (en) * | 2011-08-03 | 2013-02-07 | Omar Cueto | Apparatus For Connecting A Fuel Injector To A Test Machine |
US20130206937A1 (en) * | 2010-08-02 | 2013-08-15 | Sven Kordass | Holding device for a fuel injector |
US20170218952A1 (en) * | 2014-08-07 | 2017-08-03 | Robert Bosch Gmbh | Device and system for the pressurization of a fluid, and corresponding use |
US20180259423A1 (en) * | 2015-09-21 | 2018-09-13 | Robert Bosch Gmbh | Injector testing device |
US20180266378A1 (en) * | 2015-09-21 | 2018-09-20 | Robert Bosch Gmbh | Injector testing device |
CN114060191A (en) * | 2021-11-16 | 2022-02-18 | 苏州星波动力科技有限公司 | Aluminum alloy oil rail, hole sealing method and manufacturing method thereof, engine and automobile |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102022202684A1 (en) * | 2022-03-18 | 2023-09-21 | Robert Bosch Gesellschaft mit beschränkter Haftung | Compact high-pressure accumulator |
Citations (9)
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---|---|---|---|---|
US2859611A (en) * | 1955-08-15 | 1958-11-11 | Howard H Morse | Testing means for fuel system |
US4559815A (en) * | 1983-02-08 | 1985-12-24 | Tectron (Eng) Ltd. | Testing device for fuel injectors |
US4569227A (en) * | 1983-12-22 | 1986-02-11 | Robert Bosch Gmbh | Test station for fuel injection pump |
US4788858A (en) * | 1987-08-04 | 1988-12-06 | Tif Instruments, Inc. | Fuel injector testing device and method |
US6234002B1 (en) * | 1997-09-05 | 2001-05-22 | David W. Sisney | Apparatus and methods for cleaning and testing fuel injectors |
US6488011B1 (en) * | 1999-08-03 | 2002-12-03 | Robert Bosch Gmbh | High-pressure fuel reservoir |
US20060124112A1 (en) * | 2002-08-23 | 2006-06-15 | Turner Geoffrey R | Fuel delivery system |
US7228729B1 (en) * | 2006-07-26 | 2007-06-12 | Lincoln Industrial Corporation | Apparatus and method for testing fuel flow |
US20090188308A1 (en) * | 2008-01-29 | 2009-07-30 | Lincoln Industrial Corporation | Apparatus and method for testing fuel flow |
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GB2283533B (en) * | 1993-05-06 | 1996-07-10 | Cummins Engine Co Inc | Distributor for a high pressure fuel system |
JP2001159380A (en) | 1999-12-03 | 2001-06-12 | Keihin Corp | Fuel distribution pipe in fuel injection device |
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DE602007006656D1 (en) | 2007-07-05 | 2010-07-01 | Magneti Marelli Powertrain Spa | Method for controlling a pressure relief valve in a common rail fuel supply system |
JP2009250069A (en) | 2008-04-02 | 2009-10-29 | Otics Corp | Fuel delivery pipe having cooling pipe and fuel device |
-
2010
- 2010-09-10 DE DE102010040541A patent/DE102010040541A1/en not_active Withdrawn
-
2011
- 2011-07-20 CN CN201180043408.1A patent/CN103080529B/en active Active
- 2011-07-20 WO PCT/EP2011/062433 patent/WO2012031813A1/en active Application Filing
- 2011-07-20 EP EP11740865.8A patent/EP2614246B1/en active Active
- 2011-07-20 US US13/821,909 patent/US9388781B2/en active Active
- 2011-07-20 BR BR112013005556-1A patent/BR112013005556B1/en active IP Right Grant
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2859611A (en) * | 1955-08-15 | 1958-11-11 | Howard H Morse | Testing means for fuel system |
US4559815A (en) * | 1983-02-08 | 1985-12-24 | Tectron (Eng) Ltd. | Testing device for fuel injectors |
US4569227A (en) * | 1983-12-22 | 1986-02-11 | Robert Bosch Gmbh | Test station for fuel injection pump |
US4788858A (en) * | 1987-08-04 | 1988-12-06 | Tif Instruments, Inc. | Fuel injector testing device and method |
US6234002B1 (en) * | 1997-09-05 | 2001-05-22 | David W. Sisney | Apparatus and methods for cleaning and testing fuel injectors |
US6488011B1 (en) * | 1999-08-03 | 2002-12-03 | Robert Bosch Gmbh | High-pressure fuel reservoir |
US20060124112A1 (en) * | 2002-08-23 | 2006-06-15 | Turner Geoffrey R | Fuel delivery system |
US7222613B2 (en) * | 2002-08-23 | 2007-05-29 | Geoffrey Russell Turner | Fuel delivery system |
US7228729B1 (en) * | 2006-07-26 | 2007-06-12 | Lincoln Industrial Corporation | Apparatus and method for testing fuel flow |
US20090188308A1 (en) * | 2008-01-29 | 2009-07-30 | Lincoln Industrial Corporation | Apparatus and method for testing fuel flow |
US7587931B2 (en) * | 2008-01-29 | 2009-09-15 | Lincoln Industrial Corporation | Apparatus and method for testing fuel flow |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130206937A1 (en) * | 2010-08-02 | 2013-08-15 | Sven Kordass | Holding device for a fuel injector |
US8939019B2 (en) * | 2010-08-02 | 2015-01-27 | Robert Bosch Gmbh | Holding device for a fuel injector |
US20130031775A1 (en) * | 2011-08-03 | 2013-02-07 | Omar Cueto | Apparatus For Connecting A Fuel Injector To A Test Machine |
US9097226B2 (en) * | 2011-08-03 | 2015-08-04 | Omar Cueto | Apparatus for connecting a fuel injector to a test machine |
US20150300546A1 (en) * | 2011-08-03 | 2015-10-22 | Omar Cueto | Apparatus for connecting a fuel injector to a test machine |
US10161550B2 (en) * | 2011-08-03 | 2018-12-25 | Omar Cueto | Apparatus for connecting a fuel injector to a test machine |
US20170218952A1 (en) * | 2014-08-07 | 2017-08-03 | Robert Bosch Gmbh | Device and system for the pressurization of a fluid, and corresponding use |
US20180259423A1 (en) * | 2015-09-21 | 2018-09-13 | Robert Bosch Gmbh | Injector testing device |
US20180266378A1 (en) * | 2015-09-21 | 2018-09-20 | Robert Bosch Gmbh | Injector testing device |
US10782208B2 (en) * | 2015-09-21 | 2020-09-22 | Robert Bosch Gmbh | Injector testing device |
US10781781B2 (en) * | 2015-09-21 | 2020-09-22 | Robert Bosch Gmbh | Injector testing device |
CN114060191A (en) * | 2021-11-16 | 2022-02-18 | 苏州星波动力科技有限公司 | Aluminum alloy oil rail, hole sealing method and manufacturing method thereof, engine and automobile |
Also Published As
Publication number | Publication date |
---|---|
EP2614246A1 (en) | 2013-07-17 |
BR112013005556B1 (en) | 2021-01-05 |
EP2614246B1 (en) | 2017-03-01 |
US9388781B2 (en) | 2016-07-12 |
CN103080529B (en) | 2017-03-08 |
DE102010040541A1 (en) | 2012-03-15 |
BR112013005556A2 (en) | 2016-05-03 |
WO2012031813A1 (en) | 2012-03-15 |
CN103080529A (en) | 2013-05-01 |
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